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HK1111639A1 - Counter mechanism of feeder and feeder having counter mechanism - Google Patents

Counter mechanism of feeder and feeder having counter mechanism Download PDF

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Publication number
HK1111639A1
HK1111639A1 HK08102574.2A HK08102574A HK1111639A1 HK 1111639 A1 HK1111639 A1 HK 1111639A1 HK 08102574 A HK08102574 A HK 08102574A HK 1111639 A1 HK1111639 A1 HK 1111639A1
Authority
HK
Hong Kong
Prior art keywords
storage chamber
gear
medicine
stored material
rotating member
Prior art date
Application number
HK08102574.2A
Other languages
Chinese (zh)
Other versions
HK1111639B (en
Inventor
望月势司
川田大
辻义孝
荻野重人
丰永伦士
边见弘文
山野雅丈
Original Assignee
Teijin Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teijin Limited filed Critical Teijin Limited
Publication of HK1111639A1 publication Critical patent/HK1111639A1/en
Publication of HK1111639B publication Critical patent/HK1111639B/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M13/00Insufflators for therapeutic or disinfectant purposes, i.e. devices for blowing a gas, powder or vapour into the body
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0065Inhalators with dosage or measuring devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61JCONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J7/00Devices for administering medicines orally, e.g. spoons; Pill counting devices; Arrangements for time indication or reminder for taking medicine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M11/00Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/02Sprayers or atomisers specially adapted for therapeutic purposes operated by air or other gas pressure applied to the liquid or other product to be sprayed or atomised
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0065Inhalators with dosage or measuring devices
    • A61M15/0068Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/007Mechanical counters
    • A61M15/0071Mechanical counters having a display or indicator
    • A61M15/0073Mechanical counters having a display or indicator on a ring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0065Inhalators with dosage or measuring devices
    • A61M15/0068Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/007Mechanical counters
    • A61M15/0071Mechanical counters having a display or indicator
    • A61M15/0075Mechanical counters having a display or indicator on a disc
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M15/00Inhalators
    • A61M15/0065Inhalators with dosage or measuring devices
    • A61M15/0068Indicating or counting the number of dispensed doses or of remaining doses
    • A61M15/0081Locking means
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06MCOUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00Design features of general application
    • G06M1/04Design features of general application for driving the stage of lowest order
    • G06M1/041Design features of general application for driving the stage of lowest order for drum-type indicating means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/07General characteristics of the apparatus having air pumping means
    • A61M2205/071General characteristics of the apparatus having air pumping means hand operated
    • A61M2205/075Bulb type

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Basic Packing Technique (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Vending Machines For Individual Products (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Feeding Of Articles To Conveyors (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Control Of Conveyors (AREA)
  • Transmission Devices (AREA)
  • Pinball Game Machines (AREA)

Abstract

In a counter mechanism of a feeding device, in each discrete feeding operation, an amount corresponding to single delivery unit of stored material is ejected and providing a simple construction and permitting the remaining amount of stored material in the device invisible from outside to be known by counting the number of delivered units of stored material. A counter mechanism of this invention comprises a fixed member (10) fixed to the body and having cam lobes formed in circumferential direction, a gear (20) having a count number display that can be monitored from the outside, a rotating member (40) being restricted to rotate either to a position in the rotating direction to allow feeding of a single delivery unit and a position to preventing feeding of the stored material, a ring member (30) which can rotates in interlock with the rotating motion of said rotating member and comprises a resiliently deformable cam follower having a jaw formed at a predetermined position in circumferential direction. The rotating member is operated for a single feeding operation, the jaw of the resilient cam follower is engaged with said gear so as to rotate the gear and increase the count by only one in the count number display.

Description

Counter mechanism of supply device and supply device provided with counter mechanism
Technical Field
The present invention relates to a counter mechanism of a supply device for supplying powder, liquid, or the like, and a supply device provided with such a counter mechanism.
Background
Conventionally, a powdery medicine multi-dose metering device capable of administering a certain amount of powdery medicine multiple times is known (for example, patent document 1). The apparatus has the following configuration. That is, a medicine storage chamber capable of storing a single dose of the powdered medicine is provided below the bottom surface of the medicine storage chamber capable of storing a plurality of doses of the powdered medicine. The medicine guide portion is movable between a filling position where the medicine storage chamber is open to the medicine storage chamber and an administering position where the medicine storage chamber is closed with respect to the medicine storage chamber and the medicine storage chamber is communicated to the outside of the device via a tube while being in contact with a bottom surface of the medicine storage chamber. The powder medicine in the medicine storage chamber is filled into the medicine accommodating chamber when the medicine lead-out portion is at the filling position, the powder medicine in the medicine accommodating chamber is scraped and metered to a single administration operation amount when the medicine lead-out portion moves from the filling position to the administration position, and air is sent into the medicine accommodating chamber through the filter by operating the pump portion at the administration position, and the powder medicine in the medicine accommodating chamber is ejected to the outside of the device through the tube together with the air.
The devices disclosed in patent documents 1 and 2 can accurately eject, inhale, and administer a fixed amount of a powder medicine only by a rotation operation and a pump operation, and therefore have advantages of simple operation at the time of use, portability, and being manufactured at a relatively low cost.
However, since this device does not include a counter mechanism for displaying the number of times the powder medicine is administered, it may be difficult to grasp the amount of the powder medicine stored inside.
Further, a counting mechanism of a powder medicine inhaler or the like is known (for example, patent documents 3 to 5). The counting mechanism disclosed in patent document 3 is characterized in that pawls are engaged with two coaxial gears by means of springs, and the depth of teeth of the two gears is changed so that the two gears are operated at different time intervals while rotating, and the counting mechanism has a large number of components and a complicated structure. The counting mechanism disclosed in patent document 4 is a mechanism in which the rotary operation of the inhaler for spraying is interlocked with two gears provided with a counting display via two gears having different shafts, and the number of components is large and the structure is complicated. The counting mechanism disclosed in patent document 5 is characterized in that the vertical movement of the pusher-type actuator is converted into the rotational movement of the counter via a gear mechanically engaged with the pusher, and the number of components is small and the structure is not complicated, but the counting mechanism is not suitable for a device in which the medicine filling operation is a rotational operation as disclosed in patent document 1.
Patent document 1: WO00/41755 Specification
Patent document 2: WO01/95962 Specification
Patent document 3: japanese patent application laid-open No. 2924924
Patent document 4: WO05/002654 Specification
Patent document 5: WO02/091293 Specification
Disclosure of Invention
Therefore, an object of the present invention is to provide a counter mechanism for a supply device, which has a simple structure and can determine the remaining amount of stored material in the device that cannot be viewed by counting the number of times stored material is supplied, and a constant-volume supply device including such a counter mechanism.
In order to achieve the above object, according to the present invention, there is provided a counter mechanism of a feeding device for feeding a stored material stored in a storage chamber to the outside in a single feed amount every time a rotating operation is performed, the counter mechanism comprising: a fixing member fixed to the supply device body and having a 1 st contact portion at a predetermined position in a circumferential direction; a gear having a count display that can be viewed from the outside; a rotating member whose rotation is restricted so as to be able to be located at a position in a rotation direction that allows feeding of a single feed amount of the stored material and at a position that prevents feeding of the stored material; and a ring member which can rotate in conjunction with the rotating member and has a 2 nd contact portion at a predetermined position in a circumferential direction; one of the 1 st contact portion and the 2 nd contact portion is constituted by an elastically deformable cam follower portion having a claw, and the other is constituted by a cam portion (for example, a cam table) engageable with the cam follower portion, and rotation of the gear is controlled by an action between the cam portion and the cam follower portion so that the claw is engaged with the gear and the gear is rotated by 1 scale of the count display during 1 rotation of the rotating member by the supply operation amount.
In the counter mechanism of the feeding device, the rotating member is mounted so as to be rotatable only in the forward direction (in the mechanism of rotating the rotating member only in the forward direction), the rotation is restricted during the forward rotation operation so as to be able to be located at a 1 st position in the rotational direction in which the feeding of the stored material in a single feed amount is permitted and a 2 nd position in which the feeding of the stored material is prevented, and the gear is rotated by an amount of 1 scale of the counter display while passing through the 2 nd position from the 1 st position to the 1 st position again.
Alternatively, the rotating member may be rotated within a predetermined angle range between a 1 st position where the supply of the stored material is allowed for a single feed amount and a 2 nd position where the supply of the stored material is prevented (in a mechanism in which the rotating member is reciprocated in the forward and reverse directions), and the gear may be rotated by 1 scale of the counter display while the reciprocating rotational movement is performed by 1 stroke between the 1 st position and the 2 nd position.
In any of the mechanisms of the type in which the rotating member is rotated only in one direction or the type in which the rotating member is reciprocated in the forward direction and the reverse direction, the following configuration can be adopted:
a) the 1 st contact portion of the fixed member is a cam follower portion, and the 2 nd contact portion of the ring member is a cam portion.
b) Conversely, the 1 st contact portion of the fixed member is a cam portion, and the 2 nd contact portion of the ring member is a cam follower portion.
Further, in any of the above a) and b),
c) the ring member is provided with a projection that engages with the gear, and the gear is prevented from idling so as to be immovable relative to the ring member except when the count indicator is changed. According to this configuration, the gear always rotates together with the rotating member and the ring member.
d) On the other hand, the fixing member is provided with a projection that engages with the gear, and the gear is prevented from idling so as to be fixed to the fixing member except when the count indicator is changed. According to this configuration, the gear is always stationary together with the fixed member.
In any of the above cases, the gear is annular and includes a cylindrical portion having a tooth surface on an outer surface thereof and a flange portion integrally formed on the cylindrical portion, and the counter indicator is provided on the flange portion; the rotating member is integrally formed with a nozzle portion of the supply device, a cylindrical portion having a diameter larger than that of the nozzle portion and adapted to rotate the supply device, and a disk portion connecting the nozzle portion and the cylindrical portion, and has a window through which the count display can be viewed from the outside.
In this case, the counter display is provided on a surface of the flange portion opposite to the cylindrical portion, and the window is provided on the disc portion of the rotating member. In this case, a thin plate having a small hole for observing the counter display may be provided between the rotating member and the flange portion of the gear.
Alternatively, the counter display is provided on an outer peripheral side wall surface of the flange portion, and the window is provided on a cylindrical portion of the rotating member.
Further, the present invention provides a supply device including the counter mechanism as described above, including: a storage chamber capable of storing a storage object supplied with operation amounts for a plurality of times; a storage chamber provided in a part of a wall surface of the storage chamber and capable of storing a single supply operation amount of a stored material; a stored material lead-out section that allows the stored material of a single-feed operation amount to be filled from the storage chamber into the accommodation chamber when the rotary member is at the filling position, and allows the stored material of the single-feed operation amount in the accommodation chamber to be discharged to the outside when the rotary member is at the supply position; and a pump portion installed to be communicable with a side of the accommodation chamber opposite to the storage chamber via a filter.
In the supply device, the storage chamber is provided at a lower portion of a bottom surface of the storage chamber; the storage material guiding part can rotate in linkage with the rotating component so as to move between a filling position and a supplying position while keeping contact with the bottom surface of the storage chamber; at a filling position, opening the storage chamber with respect to the storage chamber by an opening mechanism provided in the stored material lead-out portion, thereby allowing the storage chamber to be filled with the stored material; in the supply position, the storage chamber is closed with respect to the storage chamber, the storage chamber is communicated with the nozzle provided in the rotary member through a discharge path provided in the stored material discharge portion, and the stored material in the storage chamber in a single supply operation amount can be discharged to the outside through the discharge path and the nozzle by operating the pump portion.
Further, a hole communicating with the pump portion is provided in a bottom surface of the storage chamber, the hole allows the pump portion to communicate with the outside through a discharge path of the stored material discharge portion and a nozzle of the rotary member at a filling position, and the hole is closed by the stored material discharge portion at a supply position. Thus, the counter mechanism of the present invention can be suitably applied to a device in which a pressure release hole is provided in the bottom surface of the storage chamber as described in the aforementioned WO01/95962 (patent document 2).
The counter mechanism of the present invention can perform a counting function by a rotating operation, and can perform a counter function even when the rotating operation is only a forward rotation or when the forward rotation and the reverse rotation are combined in both directions.
The above-described rotating operation is performed when a single feed amount of the stored material is counted in the feeding device storing the stored material of a plurality of feed amounts, and the number of times of feeding the stored material can be counted by the counter mechanism linked with the rotating operation performed when the stored material is counted.
Examples of the supply device capable of metering and supplying the single supply amount of the stored material in this manner include devices described in WO00/41755 (patent document 1), WO01/95962 (patent document 2), japanese patent application laid-open No. 2003-175103, and japanese patent application laid-open No. 2003-175093. It is needless to say that the counter mechanism of the present invention can be applied to a device having a pressure release hole on the bottom surface of a storage chamber, such as the supply device described in WO00/41755 (patent document 2).
The stored material of the present invention may be stored in a plurality of supply amounts and metered one by one to supply a single supply amount, and its properties and form are not limited. The stored product may be food, health food, or medicine. The form of such a stored material may be a solid, semisolid, or liquid such as a powder, a granule, or a granule. In a preferred embodiment, the stored material is discharged by air pressure, and the stored material is discharged by tilting or inverting the apparatus.
The food may be any food such as seasonings and spices, and the kind of food is not limited. Further, additives such as conventionally known stabilizers and antioxidants may be added as needed.
Examples of the health food include supplements typified by vitamin preparations and other nutritional agents. Further, additives such as conventionally known stabilizers and antioxidants may be added as needed.
The drug may be constituted by a conventionally known excipient such as a drug, lactose, starch, cellulose, or a polyethylene polymer, or may be constituted by a drug alone. Further, additives such as conventionally known stabilizers and antioxidants may be added as needed. Examples of the carrier, excipient and other additives used in the usual formulation include other commonly used substances such as lactose, magnesium stearate, starch, talc, gelatin, agar, pectin, gum arabic, olive oil, sesame oil, cacao butter and ethylene glycol.
Examples of the administration method of such a drug include oral administration, nasal administration, eye drop, inhalation, rectal administration, and vaginal administration.
As the drug used in the present invention, various drugs can be widely used. Specific examples thereof include nonpeptide proteinaceous drugs such as anti-inflammatory steroids or non-steroidal anti-inflammatory drugs, heat-and pain-relieving drugs, sedatives, therapeutic drugs for depression, antitussive and expectorant drugs, antihistamines, antiallergic drugs, antiemetics, hypnotics, vitamin agents, sex steroid hormones, antitumor drugs, anti-pulse-rate-irregularity drugs, hypertensive drugs, antiabnormals, antipsychotic drugs, antiulcer drugs, cardiotonic drugs, analgesics, bronchodilators, therapeutic drugs for obesity, platelet aggregation inhibitors, diabetes drugs, muscle and bone relaxants, migraine drugs, antirheumatic drugs, anti-biological drugs, and vasoconstrictors. Further, specific examples thereof include peptide protein drugs such as hormones, cytokinins, antibodies, and vaccines, and nucleic acids such as anti-allergens and genetic factors.
Drawings
Fig. 1 is a sectional view of a feeding device having a counter mechanism of the present invention.
Fig. 2 is an exploded perspective view of the counter mechanism according to embodiment 1 of the present invention.
Fig. 3 is a front view of the cover portion.
Fig. 4 is a perspective view of the stationary stage.
Fig. 5 is a perspective view (a) and a plan view (b) of the gear as viewed from the flange side.
Fig. 6 is a perspective view (a), a plan view (b), and a sectional view (c) of the ring member.
Fig. 7 is a front view of the rotating member.
Fig. 8 is an exploded perspective view of the counter mechanism according to embodiment 2 of the present invention.
Fig. 9 is an exploded perspective view of the counter mechanism according to embodiment 3 of the present invention.
FIG. 10 is a perspective view of the ring member of embodiment 3.
Fig. 11 is a perspective view of the fixing table of embodiment 3.
Fig. 12 is a diagram for explaining a counter display operation according to embodiment 3.
Fig. 13 is a perspective view of the first embodiment including a blind plate.
Fig. 14 is a cross-sectional view of the first embodiment including a blind plate.
Fig. 15 is a view of the dial as viewed from above.
Fig. 16 is a side view of the dial.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the drawings.
Fig. 1 shows a medicine supply device provided with a counter mechanism of the present invention. Fig. 2 is an exploded perspective view of a part of the supply device, mainly the counter mechanism of embodiment 1, and shows components constituting the counter mechanism.
First, the counter mechanism of embodiment 1 will be explained. Fig. 3 shows a cover portion of the apparatus main body, fig. 4 to 7 show structural components of the counter mechanism, respectively, fig. 4 shows a stationary base, fig. 5 shows a gear, fig. 6 shows a ring member, and fig. 7 shows a rotating member.
The lid portion 4 shown in fig. 3 constitutes a lid of a medicine storage chamber 5a described later. On the upper surface of the lid 4, 1 pair of protrusions 4a protruding upward are provided at positions facing approximately 180 °. As described later, the number of the projections 4a may be 1 or more as long as the fixed base 10 can be held by the cover 4 in a stationary state.
In an annular fixing stand 10 shown in fig. 4, a flange portion 11 and a cylindrical portion 12 are integrally formed of an appropriate resin or the like, and 1-hole 13 is provided at a position facing approximately 180 ° on the bottom surface of the flange portion 11. The fixing base 10 is fixed to the lid 4 in a non-rotatable manner by fitting the 1-hole pair 13 into the 1-pair protrusions 4a of the lid 4. The number of the holes 13 may be 1 or more as long as the fixing base 10 can be held in the cover 4 in a stationary state. Examples of suitable resins include polyethylene, polypropylene, polyethylene terephthalate, polystyrene, polyvinyl chloride, and cyclic polyolefin. Hereinafter, the term "resin" is used to exemplify the same.
The flange portion 11 of the stationary base 10 is provided with 1 pair of projections 14 for preventing idling of a gear 20 described later at positions opposed to each other by about 180 °, and these projections extend substantially in parallel with the cylindrical portion 12, and their distal end portions are directed radially inward. Further, the flange portion 11 of the stationary base 10 is provided with 1 pair of cam bases 15, which constitute a cam mechanism together with the elastic portion 32 of the ring member 30 described later, at positions facing approximately 180 °. Further, 1 projection 16 fitted in a slit 45 of a rotating member 40 described later is provided on the outer periphery of the flange portion 11 of the stationary base 10 so as to project outward. The cam groove 17 is provided on the radially inner side of the pair of cam stages 15 so as to oppose 1, and the claw portion 32 of the ring member 30 is movable radially inwardly along the cam groove 17 and engaged with the tooth surface of the gear 20 when contacting the cam stage 15, as described later.
The ring gear 20 shown in fig. 5 is integrally formed of an appropriate resin or the like, and is composed of a flange portion 21, an inner cylindrical portion 22, and external teeth 23, and the inner cylindrical portion 22 is rotatably fitted to the outer periphery of the cylindrical portion 12 of the stationary base 10. However, while the gear 20 is fitted on the stationary stage 10, the 1 pair of projections 14 of the stationary stage 10 lightly contact or fit with the external teeth 23, thereby preventing the gear 20 from idling relative to the stationary stage. On the surface of the flange portion 21 opposite to the external teeth 23, scale marks 24 indicating the number of times of administration of the medicine are marked in the circumferential direction.
The ring member 30 shown in fig. 6 is a substantially annular member integrally molded with an appropriate resin or the like, and has 1 pair of elastic portions 31 slightly protruding toward the inner periphery of the ring and extending a predetermined distance in the circumferential direction at an interval of about 180 °, and claw portions 32 protruding inward at the tip ends of the elastic portions 31. Further, the cam follower portion has a projection 33 projecting slightly below the claw portion 32. The 1 pair of elastic portions 31 are elastically deformable with respect to the ring member 30, and the projection 33 of the cam follower portion constitutes a cam mechanism together with the 1 pair of cam stages 15 of the fixed stage 10.
The ring member 30 further has a plurality of protrusions 34 protruding outward on the outer peripheral portion thereof, and 3 protrusions 34 are formed at equal intervals in the circumferential direction as shown in the drawing, for example. These projections 34 are fitted in holes 44 of a rotating member to be described later, and rotate the ring member 30 together with the rotating member 40. The number of the projections 34 is not limited as long as the ring member 30 can rotate together with the rotating member 40. For example, it may be 1 or two.
In the rotary member 40 shown in fig. 7, a nozzle portion 41 for discharging stored materials, a disk portion 42, and a cylindrical portion 43 are integrally formed by resin or the like, and the cylindrical portion 43 has 3 holes 44 fitted to the projections 34 of the ring member 30 and formed at equal intervals in the circumferential direction, for example, and a slit 45 extending at a predetermined angle in the circumferential direction and engaged with the projections 16 of the stationary table 10 is formed.
Therefore, the rotating member 40 is rotatable with respect to the fixed base 10 within a predetermined angular range defined by the slit 45, and is rotatable within a predetermined angular range between a 1 st position (filling position) at which a single feed amount of the stored material is metered and a 2 nd position (discharging position) at which the metered stored material is allowed to be discharged, as described later. In addition, although the slit 45 for regulating the rotation range of the rotating member 40 is provided in the cylindrical portion 43 of the rotating member 40 as shown in fig. 7 in the present embodiment, the same function can be achieved by providing the slit 45 in the circular plate portion 42 of the rotating member 40 and the projection 16 of the fixed base 10 at a position where the slit is fitted.
The position of the projection may be set so as to restrict rotation together with the slit. For example, as shown in fig. 13 and 14, an annular thin plate 50 having small holes 51 may be interposed between the flange portion of the gear 20 and the circular plate portion of the rotating member 40, and a projection 52 may be provided on the upper surface of the thin plate 50 so as to be fitted into a slit provided in the circular plate portion 42 of the rotating member 40. In this case, the thin plate 50 and the fixed base 10 may be fixed to move together (for example, a cylindrical portion 53 may be provided on the lower surface of the thin plate 50, and the cylindrical portion 53 may be fixed to the cylindrical portion 12 of the fixed base 10). In addition, the small hole 51 of the thin plate 50 may be aligned with the scale portion at the discharge position of the gear 20 in advance. In this case, the scale is visible only at the discharge position and is not visible at other positions, so that the discharge position and the filling position can be easily distinguished. As the structure of the thin plate 50, the structure shown in fig. 13 and 14 can be mentioned.
The cover 4, the stationary base 10, the gear 20, the ring member 30, and the rotary member 40 are assembled on a concentric circle, and the assembled state is shown in the upper part of fig. 1. The lid 4 is fitted and fixed around the medicine storage 5, the inner circumferential projection 40a of the rotating member 40 is rotatably fitted in the circumferential groove 5d of the medicine storage 5, and the fixed base 10, the gear 20, and the ring member 30 are disposed between the lid 4 and the rotating member 40, and are fixed so as not to be movable in the axial direction.
In the assembled state, as described above, the slit 45 of the rotary member 40 is fitted to the projection 16 of the fixed base 10, the fixed base 10 is fixed to the lid, and the lid is fixed to the medicine storage portion 5, whereby the rotary member 40 can rotate relative to the fixed base 10, that is, relative to the medicine storage portion 5, within the predetermined angle limited by the slit 45.
The ring member 30 is integrally rotated with the rotating member 40 because 3 protrusions 34 around the ring member are fitted into 3 corresponding holes 44 of the rotating member 40.
Accordingly, when the rotating member 40 rotates within a predetermined angular range between the 1 st position (filling position) where the stored material is allowed to be discharged in a single feed amount and the 2 nd position (discharging position) where the stored material is blocked, the ring member 30 also rotates relative to the fixed base 10 within the same angular range.
Next, an operation of rotating the gear 20 by 1-step scale to perform count display while the ring member 30 moves from the 1 st position to the 2 nd position and returns from the 2 nd position to the 1 st position will be described.
For example, when the ring member 30 is rotated from the 1 st position to the 2 nd position, the cam follower portion 33 at the end of the elastic portion 31 abuts on the cam table 15 of the fixed base 10, and the claw portion 32 at the end of the elastic portion 31 is pressed radially inward. At this time, the claw portion 32 engages with the external teeth 23 of the gear 20 inside the cam groove 17 of the fixed base 10. Then, the gear 20 is rotated by the claw portion 32 against the resistance of the protrusion 14. When the gear 20 is rotated by 1 tooth or 1 graduation, the cam follower 33 at the end of the elastic portion 31 is pushed against the opposite inclined surface of the cam table 15 of the fixed base 10, the claw portion 32 is returned radially outward, and the claw portion 32 is disengaged from the external teeth 23 of the gear 20. And the idle rotation of the gear 20 is prevented by the protrusion 14 of the fixed stage 10, so that it is rotated by 1 tooth or 1 scale.
Then, when the ring member 30 returns from the 2 nd position to the 1 st position, similarly, the cam follower portion 33 at the distal end of the elastic portion 31 reaches the cam table 15 of the stationary table 10, but at this time, although it contacts the opposite surface of the cam table 15, it merely moves over the cam table 15. That is, the claw portions 32 at the distal ends of the elastic portions 31 are slightly displaced in the axial direction of the ring member 30, but are not moved in the radial direction, so that the claw portions 32 do not engage with the external teeth 23 of the gear 20, and therefore, the gear 20 is in a state where the idle rotation thereof is blocked by the projections 14 of the fixed base 10.
Thus, only when the ring member 30 moves from the 1 st position to the 2 nd position, the scale of the gear 20 rotates by 1 division. However, conversely, the scale of the gear 20 may be rotated only when the ring member 30 returns from the 2 nd position to the 1 st position, and the rotation of the gear 20 may be stopped when the ring member rotates from the 1 st position to the 2 nd position.
In this way, every time the ring member 30 is moved from the 1 st position to the 2 nd position to discharge the stored medicine of the single operation amount, and then the ring member 30 is returned from the 2 nd position to the 1 st position to finish the 1 operation, the scale of the gear 20 is rotated by only 1 division, and for example, by providing a display (indicator) such as the scale 24 shown in fig. 5b on the annular surface of the flange portion 21 of the gear 20 on the side opposite to the external teeth 23 side, the scale can be observed from the outside through, for example, a window (not shown) of the disc portion 42 of the rotating member 40, and the number of times of using the medicine in the container of the device can be known (fig. 15).
As shown in fig. 16, the scale 24 may be provided on the side surface of the flange portion 21 of the gear 20, and the scale may be viewed from the side surface of the rotating member 40.
Next, the supply device will be described with reference to fig. 1. Basically, as described above, the quantitative supply device used in the powder medicine multi-dispenser described in WO00/41755, WO01/95962, Japanese patent laid-open publication No. 2003-175103, or Japanese patent laid-open publication No. 2003-175093 can be used.
As an embodiment of the supply device, a medicine supply device will be described with reference to fig. 1.
The main body 1 is composed of a lid 4 and a medicine storage part 5. The medicine storage portion 5 is integrally formed with a cylindrical side wall and a bottom wall of a resin or the like, has an open top surface, defines a medicine storage chamber 5a capable of storing therein a powdery medicine in an amount enabling a plurality of administration operations, and defines a hole having a capacity of a powdery medicine in a single administration operation amount as a medicine storage chamber 5b in the bottom wall of the medicine storage chamber 5 a. A filter 6 for allowing air to flow but not allowing the powder medicine to flow is attached to the bottom surface side of the medicine accommodating chamber 5 b.
The lid 4 has a hole 4b in the center thereof for passing the drug lead-out portion 2 described later. The lid 4 closes the upper surface of the medicine storage portion 5, and the lid 4, the medicine storage portion 5, and the medicine lead-out portion 2 can seal the medicine storage chamber 5 a.
The medicine lead-out portion 2 is a member formed by integrating a rod-shaped portion extending in the vertical direction through the center of the medicine storage chamber 5a of the main body 1 and defining an air passage 2d for circulating powder medicine or air therein and a disk-shaped portion having a diameter equal to or smaller than the inner diameter of the medicine storage portion 5 and having a bottom surface 2e in contact with the bottom surface of the medicine storage portion 5 with resin or the like. A convex portion protruding upward is provided at the central position on the bottom surface of the medicine storage chamber 5a, while a concave portion is provided at the central position of the bottom disk-shaped portion of the medicine lead-out portion 2, and the medicine lead-out portion 2 is rotatably provided inside the medicine storage chamber 5a by fitting these portions.
The bottom disk-shaped portion of the medicine lead-out portion 2 has a hole 2f having a larger diameter than the medicine storage chamber 5b for connecting the medicine storage chamber 5a and the medicine storage chamber 5b, and allows the bottom surface 2e of the medicine lead-out portion 2 to rotate while contacting the bottom surface of the medicine storage chamber 5a, thereby allowing the powdered medicine in the medicine storage chamber 5a to flow into the medicine storage chamber 5b, and also has a function of partitioning the medicine storage chamber 5a and the medicine storage chamber 5 b.
Further, a part of the bottom disk-shaped portion of the medicine lead-out portion 2 is provided with a tube 2g for communicating the medicine accommodating chamber 5b with an air passage 2d, which is a passage for the powder medicine and air fed from the pump portion 3 through the medicine accommodating chamber 5b of the main body 1. The tube 2g is connected to an air passage 2d extending vertically through the center of the medicine lead-out portion 2, and is aligned with (fitted into) a hole 5c provided in the bottom wall of the medicine storage portion 5 at a position (medicine filling position) shown in fig. 1.
An elastically deformable bag-like pump portion 3 is joined to a bottom lower portion of a medicine storage portion 5 constituting the main body 1. By squeezing and releasing the pump section 3, as described later, it is possible to discharge the powder medicine or to send air.
As shown in fig. 7, the rotary member 40 is integrally formed with a nozzle portion 41 for discharging the powder medicine, a disk portion 42, and a cylindrical portion 43 by resin or the like, and has an air passage 48 for transporting the powder medicine or air inside the nozzle portion 41 and an atomizing port 2h at the end. The cylindrical portion 43 has 3 holes 44 formed at equal intervals in the circumferential direction, for example, to be fitted to the protrusion 33 of the ring member 30, and has slits 45 formed therein and extending at a predetermined angle in the circumferential direction to be engaged with the protrusion 16 of the fixed base 10. By fitting the projection 40a formed on the inner surface of the cylindrical portion 43 into the groove 5d formed around the medicine storage portion 5 constituting the main body, the rotary member 40 can rotate relative to the main body within a range limited by the slit 45.
On the other hand, the square hole 13c at the lower end of the nozzle portion 41 of the rotary member 40 is fitted to the square shaft portion 2k at the upper end of the medicine discharging portion 2, and the rotary member 40 and the medicine discharging portion 2 are connected to rotate in conjunction with each other.
Therefore, by rotating the rotary member 40 relative to the main body 1 from the outside, the medicine lead-out portion 2 is rotationally moved together with the rotary member 40 relative to the main body 1 including the medicine storage portion 5, and can be rotated between the 1 st position (filling position) at which a single supply amount of powder is filled and metered, and the 2 nd position (discharge position) at which the metered powder is allowed to be discharged from the nozzle portion 1 to the outside.
In the 1 st position (filling position) shown in fig. 1, the hole 2f of the bottom surface 2e of the drug lead-out portion 2 is aligned with the drug containing chamber 5b of the main body 1. As the medicine storage chamber 5a and the medicine storage chamber 5b are thus communicated with each other, the powdered medicine in the medicine storage chamber 5a flows downward through the hole 2f of the medicine lead-out portion 2 and is filled in the medicine storage chamber 5 b. At this time, the hole 5c in the bottom surface of the medicine storage chamber 5a is aligned with the tube 2g in the bottom surface of the medicine lead-out portion.
Next, the medicine powder in the medicine accommodating chamber 5b is leveled by the bottom surface 2e of the medicine lead-out portion 2 by rotating the medicine lead-out portion 2 in conjunction with the rotating member 40, so that the amount of the powder medicine in the medicine accommodating chamber 5b becomes a certain amount, and the medicine lead-out portion 2 continues to rotate in conjunction with the rotating member 40, so that the medicine accommodating chamber 5b becomes the 2 nd position (discharge position) where the pipe 2g, the air passage 2d, and the spray opening 2h are connected. In this state, air is sent by pressing the pump portion 3, and a predetermined amount of medicine powder is discharged from the medicine accommodating chamber 5b to the outside through the tube 2g of the medicine discharge portion 2 and the air passage 2d from the spray opening 2h of the rotary member 40.
After the powder medicine is ejected, the pump section 3 returns to its original state by the elastic restoring force, and at this time, air flows into the pump section 3 from the outside through the ejection opening 2h of the rotary member 40, the air passage 2d and the tube 2g of the medicine lead-out section 2, and the hole 5c of the medicine storage section 5.
Next, the rotary member 40 is rotated to the initial position or the filling position. Further, the medicine lead-out portion 2 rotates together with the rotary member 40, and the blade 21 provided in the medicine lead-out portion 2 stirs the powdered medicine in the medicine storage chamber 5 a.
The dosing device of the present invention can be assembled, for example, as follows.
First, the filter 6 is pushed from the outside into the medicine accommodating chamber 5b provided outside the bottom of the main body 1 and set at a set position. The set position is defined by providing a step on the medicine-housing chamber 5b when the main body 1 is molded. Next, the medicine lead-out portion 2 is lifted up, and inserted into the medicine storage portion 5 at a position where, for example, the medicine storage chamber 5b coincides with a hole 2f, which is located in the medicine lead-out portion 2 and has a larger diameter than the medicine storage chamber; a hole 2i in the center of the bottom surface 2e of the medicine lead-out portion 2 is inserted into and fixed to a projection 5d in the center of the bottom surface inside the main body. Here, a required amount of the powdered medicine is loaded into the medicine storage chamber 5a in the main body 1. Next, the lid 4 is lifted up, and the drug lead-out portion 2 is passed through the central hole 4b to closely fix the lid 4 to the main body 1. Next, the fixed base 10, the gear 20, and the ring member 30 constituting the counter mechanism are interposed and the rotating member 40 is attached. At this time, the medicine lead-out portion 2 is attached to the main body 1 by fitting the shaft portion 2k having a non-circular cross section at the end of the medicine lead-out portion 2 into the non-circular hole 13c of the rotating member 40. In order to uniquely determine the mutual rotational position, the cross-sectional shapes of the shaft portion 2k and the non-circular hole 13c are preferably pentagonal in shape, for example, having two parallel sides, 1 side perpendicular to the two sides, and two opposite sides. Next, the pump unit 3 is picked up and connected to and fixed to the lower part of the main body 1, thereby completing the supply device.
A filter may be attached to the hole 5c in the bottom surface of the medicine storage chamber 5 a.
The pump portion 3 of the present invention is a member for compressing air required for administration (spraying or inhalation) of a powdered medicament, and is preferably formed of a flexible material or at least a part of a wall portion is formed of a flexible material. Here, the term "at least a part of the pump is formed of a flexible material" means that the pump has a function of ejecting and inhaling the powdered medicine accommodated in the medicine accommodating chamber 5b by pressing and releasing the part formed of the flexible material. The pump section 3 may be entirely made of the flexible material, or the pump section 3 may be made of a flexible material except for a portion near the joint with the main body 1 and the remaining portion may be made of an inflexible material.
The feeding device of the present invention stores the medicine in the medicine storage chamber 5a in the medicine storage chamber 5b by rotating the medicine lead-out portion 2 in conjunction with the rotating member 40, and then scrapes the medicine by rotating the medicine lead-out portion 2 in the reverse direction, thereby separating the medicine of a single dose into the medicine storage chamber 5b, so that it is not necessary to use a special device such as a scraper, and a mechanism for preventing density change and the like by circulating air against the change in bulk density or offset of the powder medicine which may occur during storage is not necessary, but it is possible to simply and accurately separate and quantify the medicine of a single dose from the powder medicines of a plurality of doses stored in the medicine storage chamber 5 a.
In the feeding device of the present embodiment, it is needless to say that the reduction of the number of parts is advantageous for the miniaturization of the entire device, and in addition, for example, the arrangement in which the air passage 2d is provided at the center of the axis of the medicine lead-out portion 2 is also advantageous for the miniaturization of the size (height) of the entire device, and is also suitable for the size to be carried.
In the filling position, the hole 2f in the bottom surface 2e of the medicine lead-out portion 2 overlaps the medicine containing chamber 5b of the main body 1 to fill the powdered medicine into the medicine containing chamber 5b, and further the hole 5c in the bottom surface of the medicine storage portion 5 is aligned with the tube 2g of the medicine lead-out portion 2, so that the inside of the pump portion 3 communicates with the outside of the dispenser, and therefore, when the pump portion 3 is compressed, the air pressure acting from the pump portion 3 to the medicine containing chamber 5b is reduced, the powdered medicine in the medicine storage chamber 5a is appropriately stirred, and the accuracy of filling into the medicine containing chamber 5b is improved. When the rotary member 40 and the medicine lead-out portion 2 rotate to the discharge position, the tube 2g of the medicine lead-out portion 2 is connected to the medicine accommodating chamber 5b, and the powdered medicine in the medicine accommodating chamber 5b can be discharged.
As described above, the supply device of the present embodiment can bring the medicine storage chamber 5a into a state close to a hermetic state by combining the medicine lead-out portion 2 and the cap portion 4 with the medicine storage portion 5, but when the medicine is filled, a difference in air pressure may occur between the medicine storage chamber 5a, the pump portion 3, and the outside of the dispenser due to the hermetic state.
However, in the supply device of the present invention, the hole 5c is provided in the bottom surface of the medicine storage chamber 5a, and when the medicine is filled, the hole 5c is aligned with the tube 2g opened in the bottom surface of the medicine lead-out portion, whereby the air pressures outside the medicine storage chamber 5a, the pump portion 3, and the dispenser can be made uniform, and thus a fixed amount of medicine can be measured.
Fig. 8 is an exploded perspective view showing a counter mechanism of a supply device according to embodiment 2 of the present invention. The above embodiment is a structure in which the rotary member 40 can be rotated within a predetermined angular range between the 1 st position (filling position) at which the single supply amount of the stored material is measured and the 2 nd position (discharging position) at which the measured supply of the stored material is allowed in the 1 st discharging operation of the stored material, but in the 2 nd embodiment, the rotary member 40 can be rotated only in a predetermined direction (normal rotation).
That is, the ring member 30 rotates integrally with the rotating member 40, and the idling of the gear 20 is prevented by the projection 14 of the stationary stage 10, similarly to the above-described embodiment 1, but in the inner peripheral portion of the ring member 30, as members for restricting the rotation at the 1 st position and the 2 nd position, there are provided the claw 32 provided at the tip of the elastic portion 31 at the 1 st position, and the deformable rib 19 provided at two positions on the stationary stage 10 so as to face each other at 180 ° corresponding to the claw 32. Therefore, the projection 32 of the ring member 30 enters the recess 19a of the rib 19 at the time of normal rotation, and rotation is restricted. If the rotation is further rotated in the normal direction by a force exceeding the rotation restriction force, the projection 32 is disengaged from the recess 19a to enable rotation, and the rotation is restricted again after the rotation of 180 °. That is, in the present embodiment, filling and discharging are repeated every 180 °.
Therefore, in embodiment 2, the projection 16 (fig. 4) of the fixed base 10 and the slit 45 (fig. 7) of the rotating member 40 of embodiment 1 are not provided.
During 1 supply operation of rotating from the 1 st position (filling position) to the 2 nd position (discharge position) and then rotating from the 2 nd position to the 1 st position, the claws 32 of the elastic portion 31 of the ring member 30 engage with the gear 20, and the scale of the gear 20 is rotated by 1 division. Further, as in embodiment 1, the number of times the gear 20 is viewed from, for example, the window 47 of the rotating member 40 can be displayed. In embodiment 2, since the gear 20 rotates by 1 step when the rotating member 40 and the ring member 30 rotate 360 °, only 1 cam table 15 of the stationary table 10 is provided.
Fig. 9 is an exploded perspective view showing a counter mechanism 3 of a feeding device of the present invention, fig. 10 is a perspective view of a ring member, and fig. 11 is a perspective view of a fixing base. In both of the above-described embodiments 1 and 2, the cam base (cam table) is provided on the stationary stage 10 side and the cam follower portion (elastic portion 31) is provided on the rotating ring member 30 side, but in the embodiment 3, the cam follower portion (elastic portion) is provided on the stationary stage 10 side and the cam base (cam table) is provided on the rotating ring member 30 side.
The cover 4 is provided with 1 or more protrusions 4a protruding upward on its upper surface. On the other hand, the annular fixing base 10 is integrally formed with a flange portion 11, an inner cylindrical portion 12a, and an outer cylindrical portion 12b by a suitable resin or the like, and has a hole 13 in the bottom surface of the flange portion 11 to be fitted into the projection 4a of the lid portion 4, so that the annular fixing base 10 is fixed to the lid portion 4 so as not to be rotatable.
The inner cylindrical portion 12a of the fixed base 10 is provided with 1 projection 16 fitted into an arc-shaped slit 45 provided in a circular plate portion 42 of a rotary member 40 described later, and the projection 16 projects toward the end opposite to the flange portion 11. Further, the outer cylindrical portion 12b of the fixed base 10 has 1 pair of elastic portions 31 slightly protruding toward the inner circumferential side and extending a predetermined distance in the axial direction at an interval of about 180 °, and each elastic portion 31 has a claw portion 32 protruding toward the inner circumferential side at the end thereof. Further, a cam follower 33 slightly protruding above the claw portions 32 is provided. These 1 pair of elastic portions 31 constitute a cam mechanism together with 1 pair of cam stages 15 of the ring member 30 described later.
The ring member 30 is a substantially annular member integrally formed of an appropriate resin, and has 1 or two protrusions 34 arranged at an interval of 180 ° as shown in the drawing, which protrude outward, on the outer peripheral portion thereof. These projections 34 are fitted in the holes 44 of the rotating member 40, and the ring member 30 is rotated together with the rotating member 40. The ring member 30 is formed with a cam groove 17 in the circumferential direction, and 1 pair of cam stages 15 are provided on the outer sides of the cam groove 17 in the radial direction along the cam groove 17, and when the elastic portion 31 of the fixed stage 10 is guided so that the claw portions 32 of the fixed stage 10 contact the cam stages 15 as described later, the claw portions 32 can be moved inward in the radial direction by the cam groove 17 and engaged with the outer teeth 23 of the gear 20. The number of the projections 34 is not limited as long as the ring member 30 can rotate together with the rotating member 40, and may be more than two.
The ring member 30 is provided with 1 or 1 pair of projections 14 provided at positions facing approximately 180 ° as shown in the figure for preventing idling of the gear 20 described later, and extends substantially parallel to the cylindrical portion of the gear 20, and the distal end portions of these projections are directed radially inward and contact the external teeth 23 of the gear 20.
The gear 20 has the same structure as that of the above embodiment, and the inner cylindrical portion 22 is rotatably fitted to the outer periphery of the cylindrical portion 12a of the stationary stage 10. However, while the gear 20 is fitted on the stationary table 10, the 1-pair protrusions 14 of the ring member 30 are lightly in contact with and fitted on the external teeth 23, and the gear 20 is prevented from idling relative to the ring member 30. On the surface of the flange portion 21 opposite to the external teeth 23, scale marks indicating the number of times of administration of the medicine are marked in the circumferential direction.
As described above, the rotating member 40 has 1 or more holes 44 in the cylindrical portion 43 thereof, which are fitted to the projections 34 of the ring member 30, and a slit 45 extending at a predetermined angle in the circumferential direction of the disk portion 42, which is engaged with the projections 16 of the fixed base 10.
Therefore, the rotating member 40 is rotatable with respect to the fixed base 10 within a predetermined angular range defined by the slit 45, and is rotatable within a predetermined angular range between a 1 st position (filling position) at which a single feed amount of the stored material is metered and a 2 nd position (discharging position) at which the metered supply of the stored material is allowed.
In embodiment 3, the cover 4, the stationary table 10, the gear 20, the ring member 30, and the rotary member 40 are assembled on a concentric circle, the ring member 30 and the rotary member 40 are rotated integrally, and when the rotary member 40 is rotated within a predetermined angular range between the 1 st position (filling position) for allowing the discharge of the stored material of a single feed amount and the 2 nd position (discharging position) for preventing the supply of the stored material, the ring member 30 is also rotated relative to the stationary table 10 within the same angular range.
Fig. 12 shows an operation of rotating the gear 20 by 1-step scale to perform count display while the ring member 30 is moved from the 1 st position to the 2 nd position and returned from the 2 nd position to the 1 st position in embodiment 3.
Fig. 12(a) is an initial (1 st) position, which is, for example, a supply position for supplying a powdered medicine. Fig. 12(b) shows a timing when the cam starts to operate by rotating the rotary member in the arrow direction, fig. 12(c) shows a timing when the cam finishes operating, fig. 12(d) shows a timing when the rotary member reaches, for example, a filling position (2 nd position) where the powder medicine is filled by rotating the rotary member by a predetermined angle (for example, 120 degrees) in the arrow direction, and fig. 12(e) shows a timing when the rotary member is rotated in the opposite direction and passes through without exerting the cam operation.
In fig. 12(a) to 12(e), reference positions of the rotating member 40, the stationary base 10, the ring member 30 (the projection 14), and the gear 20 are indicated by circle marks P, Q, R, S from the outside. In the initial position of fig. 12(a), the reference position P, Q, R, S of each component is the same position in the rotational direction. The fixed base 10 does not rotate regardless of the operation of the rotary member 40, the ring member 30, and the gear 20, and therefore the reference position Q is not changed in each stage.
Since the rotating member 40 and the ring member 30 rotate in conjunction with each other, the reference positions P and R are always at the same position in the rotational direction. Since the gear 20 is prevented from idling with respect to the ring member 30 as described above, the ring member 30 operates in the same manner until the cam action of fig. 12(b) is started, unless the count scale advances by 1 scale, and the reference positions S, P, and R are at the same positions in the rotational direction.
However, when the cam base 15 of the ring member 30 reaches the projection 33 of the cam follower provided at the distal end of the elastic portion 31 of the fixed base 10, the two come into contact with each other, and the claw portion 32 at the distal end of the elastic portion 31 is pressed radially inward. At this time, the claw portions 32 engage with the external teeth 23 of the gear 20 inside the cam grooves 17 of the ring member 30. Then, the gear 20 is rotated with respect to the ring member 30 via the pawls 32 with a force stronger than the idle rotation preventing force of the protrusions 14. If the gear 20 is rotated by 1 tooth or 1 graduation, the projection 33 of the cam follower portion at the tip of the elastic portion 31 is shifted to the opposite inclined surface of the cam land 15 of the ring member 30, the claw portion 32 is returned radially outward, and the claw portion 32 is disengaged from the external teeth 23 of the gear 20. Since the idle rotation of the gear 20 is prevented by the protrusions 14 of the ring member 30, it is rotated only by an amount of 1 tooth or 1 scale with respect to the ring member 30. That is, in this state, as shown in fig. 12(c), the reference position S of the gear 20 is shifted from P and Q by 1 minute.
Next, from the time point when the filling position shown in fig. 12(d) is reached, as shown in fig. 12(e), the rotating member 40 is rotated in the opposite direction, and the cam follower 33 at the end of the elastic portion 31 of the stationary stage 10 reaches the cam table 15 of the ring member 30, and at this time, the cam follower contacts the opposite surface of the cam table 15, but only moves over the cam table 15. That is, although the claw portions 32 at the distal ends of the elastic portions 31 are slightly displaced in the axial direction of the ring member 30, they do not move in the radial direction, and therefore the claw portions 32 do not engage with the external teeth 23 of the gear 20, and the gear 20 is in a state where idling is prevented by the protrusions 14 of the ring member 30.
Other configurations and operations of embodiment 3 are the same as those of embodiment 1, and therefore detailed description thereof is omitted. In embodiment 1 and embodiment 2, a cam action conforming to the actions of the respective embodiments and based on the same principle may be employed.
The counter mechanism in the feeding device and the embodiment of the feeding device having the counter mechanism according to the present invention have been described above with reference to the drawings, but the present invention is not limited to the above embodiment, and can be modified and corrected in various ways within the spirit and scope of the present invention.
Industrial applicability
In this way, the present invention has an effect of providing a counter mechanism of a supply device capable of grasping the amount of remaining stored material in the device which cannot be visually observed by counting the number of times of supplying stored material with a simple structure, and a constant-volume supply device including such a counter mechanism.
The present invention is particularly suitable as a constant-volume feeder for accommodating a plurality of times of a powder having a small amount used at one time in a container, and in such a feeder, the number of times of use, that is, the remaining amount of the powder can be easily grasped, and safe and reliable feeding of the powder and the like can be performed.

Claims (12)

1. A feeding device for feeding a stored material stored in a storage chamber to the outside in a single feed amount at each rotation operation,
having a rotating member rotatably provided on a main body, the rotating member being rotatable within a predetermined angular range between a 1 st position allowing a single feed amount of the stored material to be fed and a 2 nd position preventing the feed of the stored material,
the supply device further includes a counter mechanism including:
a fixing member fixed to the supply device body and having a 1 st contact portion at a predetermined position in a circumferential direction;
a gear having a count display that can be viewed from the outside;
and a ring member which can rotate in conjunction with the rotating member and has a 2 nd contact portion at a predetermined position in a circumferential direction;
one of the 1 st contact portion and the 2 nd contact portion is constituted by an elastically deformable cam follower portion having a claw, and the other is constituted by a cam portion capable of abutting on the cam follower portion, and the gear is rotationally controlled so that the claw of the cam follower portion engages with the gear to rotate the gear by 1 scale of the count display during movement of one of the forward path and the return path during reciprocating rotational movement of the rotary member by 1 stroke between the 1 st position and the 2 nd position, and the claw of the cam follower portion does not engage with the gear during movement of the other of the rotary members.
2. The supply device according to claim 1, wherein the 1 st contact portion of the fixing member is a cam follower portion, and the 2 nd contact portion of the ring member is a cam portion.
3. The supply device according to claim 2, wherein the ring member is provided with a projection that engages with the gear, and the gear is prevented from idling so as not to move relative to the ring member except when the count indicator is changed.
4. The supply device according to claim 1, wherein the 1 st contact portion of the fixed member is a cam portion, and the 2 nd contact portion of the ring member is a cam follower portion.
5. The supply device according to claim 1, wherein the fixing member is provided with a projection that engages with the gear, and the gear is prevented from idling so as not to move relative to the fixing member except when the count indicator is changed.
6. The supply of claim 1,
the gear is annular and comprises a cylindrical part with a tooth surface on the outer surface and a flange part integrally formed on the cylindrical part, and the counting display is arranged on the flange part;
the rotating member is integrally formed with a nozzle portion of the supply device, a cylindrical portion having a diameter larger than that of the nozzle portion and adapted to rotate the supply device, and a disk portion connecting the nozzle portion and the cylindrical portion, and has a window through which the count display can be viewed from the outside.
7. The supply of claim 6 wherein said counter display is provided on a face of said flange portion opposite said cylindrical portion having said toothed surface on said outer surface, and said window is provided on a disc portion of said rotatable member.
8. The supply device according to claim 6, wherein a thin plate having a small hole for observing the counter display is provided between the rotating member and the flange portion of the gear.
9. The supply apparatus according to claim 6, wherein the counter display is provided on an outer peripheral side wall surface of the flange portion, and the window is provided on a cylindrical portion of the rotating member.
10. The supply apparatus according to any one of claims 1 to 9, further comprising:
a storage chamber capable of storing a storage object supplied with operation amounts for a plurality of times;
a storage chamber provided in a part of a wall surface of the storage chamber and capable of storing a single supply operation amount of a stored material;
a stored material leading-out part which allows the stored material of single feeding operation amount to be filled from the storage chamber to the accommodating chamber when the rotating member is at the 1 st position, and allows the stored material of single feeding operation amount in the accommodating chamber to be discharged to the outside when the rotating member is at the 2 nd position;
and a pump portion installed to be communicable with a side of the accommodation chamber opposite to the storage chamber via a filter.
11. The supply of claim 10,
the accommodating chamber is arranged at the lower part of the bottom surface of the storage chamber;
the storage material guiding part can rotate in linkage with the rotating component so as to move between a filling position and a supplying position while keeping contact with the bottom surface of the storage chamber;
at a filling position, opening the storage chamber with respect to the storage chamber by an opening mechanism provided in the stored material lead-out portion, thereby allowing the storage chamber to be filled with the stored material;
in the supply position, the storage chamber is closed with respect to the storage chamber, the storage chamber is communicated with the nozzle provided in the rotary member through a discharge path provided in the stored material discharge portion, and the stored material in the storage chamber in a single supply operation amount can be discharged to the outside through the discharge path and the nozzle by operating the pump portion.
12. The supply device according to claim 11, wherein a hole communicating with the pump portion is provided in a bottom surface of the storage chamber, the hole allows the pump portion to communicate with the outside via a discharge path of the stored material discharge portion and a nozzle of the rotary member in the filling position, and is closed by the stored material discharge portion in the supply position.
HK08102574.2A 2004-08-12 2005-08-12 Counter mechanism of feeder and feeder having counter mechanism HK1111639B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP235415/2004 2004-08-12
JP2004235415 2004-08-12
PCT/JP2005/015112 WO2006016726A1 (en) 2004-08-12 2005-08-12 Counter mechanism of feeder and feeder having counter mechanism

Publications (2)

Publication Number Publication Date
HK1111639A1 true HK1111639A1 (en) 2008-08-15
HK1111639B HK1111639B (en) 2013-01-18

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EP1779884B1 (en) 2010-03-03
KR101166743B1 (en) 2012-07-19
WO2006016726A1 (en) 2006-02-16
CN101039714A (en) 2007-09-19
ZA200701226B (en) 2008-04-30
US7819285B2 (en) 2010-10-26
JP4592701B2 (en) 2010-12-08
ES2342089T3 (en) 2010-07-01
MX2007001659A (en) 2007-07-04
TWI360427B (en) 2012-03-21
DK1779884T3 (en) 2010-05-17
US20080105702A1 (en) 2008-05-08
CA2576673A1 (en) 2006-02-16
BRPI0514291A (en) 2008-06-17
KR20070048724A (en) 2007-05-09
EP1779884A4 (en) 2009-07-22
CN101039714B (en) 2012-07-11
JPWO2006016726A1 (en) 2008-05-01
PT1779884E (en) 2010-05-28
EP1779884A1 (en) 2007-05-02
AU2005272309A1 (en) 2006-02-16
DE602005019748D1 (en) 2010-04-15
TW200615012A (en) 2006-05-16
ATE459939T1 (en) 2010-03-15
CA2576673C (en) 2013-10-01
NZ553181A (en) 2010-08-27
AU2005272309B2 (en) 2010-08-19

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